Rack-Mounted Automatic Transfer Switch Provides the Highest Reliability of Electrical Supply at 7x24 Mission Critical Facilities For Protection of Single Cord, Dual Cord, and Triple Cord Electronic Loads

TwinSource manufactures rack-mount automatic transfer switches in both solid state and electromechanical versions.

• The solid state or static transfer switch is a two pole single phase device and is available in ratings of 30, 40, and 50A in all worldwide voltages.
• The electromechanical units are available in 20 and 30A in all worldwide voltages.

These systems all operate on the basis of powering your critical load from a preferred source and in the event that source falls outside your pre-set specifications, then the system transfers the load to the alternate supply automatically. It does this quickly in less than 1/4 cycle for the SCR based system and in less than 1/2 cycle for the electromechanical version, all without any risk of dropping the load or cross connecting the sources. The Preferred Source can be selected by a simple push of a button, remotely through the RS 485 port, or through a settings selection.

The TwinSource Rack Mount Static Transfer Switch is considered “Best in Class” among rackmounted automatic transfer switch products. It has a proven track record of over 20,000,000 hours on line without a load failure among its installed base worldwide. We have systems across the globe mostly populated in US, UK, Singapore, Korea, Hong Kong, Dubai, and other locations. For more information on the products please refer to the corresponding tabs above. This web site also offers a general tutorial on all ratings and types of transfer switches which you will find very informative.

Our systems are utilized in the following applications to maintain critical equipment worldwide:

• Major Data Centers
• Remote Satellite Operations
• Financial & Banking Operations
• Hosting Sites
• Network Operations Centers
• Fiber Optic Nerve Centers
• Air Traffic Control Centers
• Military Command & Control
• Petrochemical Plants
• Semiconductor Fab Plants
• Process Control
• Power Plants
• Security Systems
• Communications

• NEW: White Paper - Upgrade to 8 x 9's Availability (PDF)
• NEW: July 15, 2007 Press Release
• NEW: July 10, 2006 Press Release
• NEW: June 23, 2001 Press Release

[Photos of typical sites where rack mounted static transfer switches are used due to criticality of their operations.]